A guide to a successful deployment of Cisco IP Telephony solution real-world case studies from the Cisco design consulting engineers who developed the process PDIOO give practical advice on all stages of successful IPT deployment brief understanding of the phase PDIOO enables architects and engineers to successfully deploy the Cisco IPT solution Division of the process into phases PDIOO provides a logical and defined guide for network engineers and architects as they proceed through each phase in deploying the Cisco IPT solution Includes detailed questionnaires for each phase of deployment in the cycle PDIOO great help in understanding customer networks and network infrastructure design requirements? , Call processing infrastructure design and applications, and voice-mail system design are discussed in depth Cisco IP Telephony (IPT) solutions are in use at an accelerated rate, and network architects and engineers need to understand the various stages involved in a successful deployment: planning, design, implementation, operation, and optimization (PDIOO). On the road to understanding, they must engage to collect information for each stage of deployment, and then follow through with the best architecture, deployment model, and implementation based on the data collected. Cisco IP Telephony: Planning, Design, Implementation, Operation, and Optimization is a guide for architects and network engineers as they deploy the Cisco IPT solution. Real world examples and explanations with technical details, design tips, network illustrations, and sample configurations illustrate each step in the process of planning, design, implementation, operation, and optimize the chosen architecture based on the information you have collected. in-depth instruction on every phase of PDIOO provide specific details about the tasks involved and best practices for successful implementation of the IPT solution.